Thor Matteson S.E.
Engineering firm · San Francisco permit activity
Engineering firm active in San Francisco construction, tracked from public building-permit filings.
#799
by SF filing activity
among SF architects & engineers, last 90 days
3
projects tracked
Aug 2025 to Jun 2026
1/16
active weeks
weeks with a filing (last 16)
Every Thor Matteson S.E. project: scopes, declared values, teams and filing history.
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$52K Sunset/Parkside renovation
Filed 1 month ago · Thor Matteson S.E.: engineer
Voluntary strengthening at ground floor
GC named · 1 other firm identified
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$23K Castro/Upper Market renovation
Filed 11 months ago · Thor Matteson S.E.: engineer
Install a (n) shear wall between line b&d. install a new 4x4 x20' strut along line b w/ 2x block over strut between joists. add a new shear…
No GC named
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1 more
Thor Matteson S.E. projects with project intelligence
Scopes, values, teams and filing history for every one
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Neighborhood, filing date, scope and declared value are shown here. Exact addresses,
owner and contact details and full filing histories are part of the paid product.
3 project records for Thor Matteson S.E.: addresses, values, project teams
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Most recent filing: Sunset/Parkside · Jun 25, 2026
1 active · 1 newly observed last 90 days
Filing activity · last 16 weeks
APR
MAY
JUN
JUL
1
active projects (last 90d)
1
newly observed (last 90d)
Jun 2026
peak month
Project mix · by use
Residential100%
Geography · by neighborhood
Castro/Upper Market34%
Glen Park33%
Sunset/Parkside33%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| None on shared filings. | ||||
| 1 | Seismic Retrofitters Inc. | General contractor | 1 | |
Firms that appear on the same San Francisco permit filings. Association on shared filings, not a proven working relationship.
Frequently asked questions
How many SF projects has Thor Matteson S.E. filed?▾
PermitPipeline tracks 3 San Francisco building-permit projects for Thor Matteson S.E. (Aug 2025 to Jun 2026). 1 had filing activity in the last 90 days.
Does Thor Matteson S.E. work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Thor Matteson S.E.'s projects are commercial and 100% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does Thor Matteson S.E. work?▾
33% of Thor Matteson S.E.'s tracked San Francisco projects are in Castro/Upper Market.
What is a typical Thor Matteson S.E. project worth?▾
Across the 3 tracked projects with a declared value, Thor Matteson S.E. averages $32K per project (declared value on the permit filing, not contract value).
Which firms does Thor Matteson S.E. work with most often?▾
Thor Matteson S.E. most frequently appears on the same San Francisco permit filings as Seismic Retrofitters Inc.. Appearing together indicates association on shared filings, not a proven working relationship.
Is Thor Matteson S.E. an engineering firm?▾
Thor Matteson S.E. is listed as an engineering firm on its San Francisco permit filings. Roles on this profile are derived from the role each firm holds on public DOB filings.
Public aggregate — full project records are part of the paid leads product. Updated daily from SF DBI filings.
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